问题 解答题
计算下列各题:
(1)(-6)-(-10)+(-3)+|-9|
(2)-32×2-3×(-2)2
(3)-2+(-
3
7
)×(-2
2
3
4
7

(4)-14+
1
2
÷(-3)×[1-(-2)2]

(5)-99
71
72
×36
(用简便方法计算)
答案

(1)(-6)-(-10)+(-3)+|-9|,

=-6+10-3+9,

=-9+19,

=10;

(2)-32×2-3×(-2)2

=-9×2-3×4,

=-18-12,

=-30;

(3)-2+(-

3
7
)×(-2
2
3
)÷
4
7

=-2+(-

3
7
)×(-
8
3
)×
7
4

=-2+2,

=0;

(4)-14+

1
2
÷(-3)×[1-(-2)2],

=-1+

1
2
×(-
1
3
)×(1-4),

=-1+

1
2
×(-
1
3
)×(-3),

=-1+

1
2

=-

1
2

(5)-99

71
72
×36,

=(

1
72
-100)×36,

=

1
72
×36-100×36,

=

1
2
-3600,

=-3599

1
2

名词解释
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